§ Mr. Arthur Lewisasked the Secretary of State for the Environment under what statutory authority he has advised and encouraged local authorities and water undertakings to add fluorides to water; and what action anyone can take in order not to use such water, if he has conscientious or medical reasons for not doing so.
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§ Mr. Denis HowellI do not need statutory authority to advise and encourage. I am advised that there are no medical grounds for avoiding the use of water containing up to one part per million fluoride whether present naturally or added artificially.